#311D49
Closest named color: Dark Purple (#35063E). oklch(28.1% 0.08 302.5), rgb(49, 29, 73).
Aa
White text reads best on this color (14.97:1).
About this color
#311D49 is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.080 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.052 away. White text reads best on it, at 14.97:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.080) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.40:1 |
| White text | 14.97:1 |
Values
| HEX | #311D49 |
| RGB | rgb(49, 29, 73) |
| HSL | hsl(267, 43%, 20%) |
| OKLCH | oklch(28.1% 0.08 302.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #311D49 | 14.97:1 | AAA | Lc -104.5 | Preferred for body text |
| Black text on #311D49 | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #311D49 text on white | 14.97:1 | AAA | Lc 101.7 | Preferred for body text |
| #311D49 text on black | 1.40:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#EDE6FA
oklch(93.6% 0.028 301.7)
-
Step 200
200
#E0D1F7
oklch(88.5% 0.054 303.2)
-
Step 300
300
#CCB2F4
oklch(80.9% 0.095 302.4)
-
Step 400
400
#B387EE
oklch(70.7% 0.152 302.4)
-
Step 500
500
#A165E8
oklch(63.1% 0.193 302.3)
-
Step 600
600
#8D47D6
oklch(55.6% 0.21 302.5)
-
Step 700
700
#7837BA
oklch(49.2% 0.196 302.4)
-
Step 800
800
#622F96
oklch(42.8% 0.161 302.8)
-
Step 900
900
#4F2B78
oklch(37.6% 0.127 302.2)
-
Step 950
950 (this color)
#311D49
oklch(28.1% 0.08 302.5)
#311D49 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #0D264A | 0.059 |
| Deuteranopia (no green cones) | #132748 | 0.055 |
| Tritanopia (no blue cones) | #2C252F | 0.060 |
| Achromatopsia (no color) | #272727 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311D49
#311D49
oklch(28.1% 0.08 302.5)
- #232E00
#232E00
oklch(28.1% 0.069 122.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #311D49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.052
- Space Cadet #2B2D42 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.056
- Eggplant #380835 ΔE 0.057
- Eggplant Purple #430541 ΔE 0.058
- Deep Purple #36013F ΔE 0.060
- Aubergine #3D0734 ΔE 0.061
- Deep Violet #490648 ΔE 0.063
Use #311D49 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.